A Truck Moves 80

question 75

Multiple Choice

A truck moves 80.0 m east,then moves 140.0 m west,and finally moves east again a distance of 80.0 m.If east is chosen as the positive direction,what is the truck's resultant displacement?

• A)20.0 m
• B)-20.0 m
• C)300.0 m
• D)-300.0 m
• E)​140.0 m

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Definitions:

Pretests

Initial assessments or tests conducted before an intervention or experiment to establish a baseline for comparing post-test outcomes.

Attrition Effects

The impact on research findings from participants dropping out of a study over time, potentially biasing the results.

Generalize

To generalize means to make a broad statement or rule that applies beyond the original context, based on observations from specific examples.

Cognitive Task

refers to a specific activity or exercise designed to assess or enhance cognitive functions, such as memory, attention, or problem-solving skills.